You roll five number cubes and the numbers rolled are 1,2, 3, 4, and 5. Are the events independent? Explain. A. No; five number cubes were rolled instead of one.
B. Yes; none of the rolls has an effect on another roll.
C. No; none of the rolls had the same outcome.
D. Yes; all the rolls had different outcomes.

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International calls require the use of a country code. many country codes a 3-digit numbers. country codes do not begin with a 0 or 1. there are no restrictions on the second and third digits. how many different 3-digit country codes are possible?

The function a represents the cost of manufacturing product a, in hundreds of dollars, and the function b represents the cost of manufacturing product b, in hundreds of dollars. a(t) = 5t + 2 b(t) = 7t - 2t +4 find the expression that describes the total cost of manufacturing both products, a(t) + b(t). a. 7t^2 - 7t + 2 b. 7t^2 + 3 +6 c. 7t^2 + 7t - 6 d. 7t^2 - 3t + 6